Home / 113,768.20-170,781.90-67,047.40

Finding the Fourth Proportional to 113,768.20, 170,781.90 and 67,047.40

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Solution

The fourth proportional to 113,768.20, 170,781.90 and 67,047.40 is: 100,647.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,768.20 : 170,781.90 = 67,047.40 : x
  2. Step 2: Convert to fraction form
    113,768.20/170,781.90 = 67,047.40/x
  3. Step 3: Cross multiply
    113,768.20x = 170,781.90 × 67,047.40
  4. Step 4: Simplify right side
    113,768.20x = 11,450,482,362.06
  5. Step 5: Solve for x
    x = 11,450,482,362.06/113,768.20
  6. Step 6: Final answer
    x = 100,647.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.